Heating device for an electronic cigarette



FIG. 1 is a front elevation view of a heating device for an electronic cigarette, showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left-side elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines depict portions of the heating device for an electronic cigarette that form no part of the claimed design. 

CLAIM The ornamental design for a heating device for an electronic cigarette, as shown and described. 